Paris apartment fire kills 10, injures more than 30; arson suspected

PHOTO: A fire in a building in Paris, Feb. 5, 2019.PlayBSPP/AFP/Getty Images
WATCH Paris apartment fire kills 8, injures dozens

At least 10 people were killed and 37 others injured when flames engulfed an apartment building in an affluent western Paris neighborhood early Tuesday morning.

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Paris prosecutor Remy Heitz told reporters at the scene that a criminal investigation has been opened to determine whether the cause of the blaze was intentional arson resulting in death.

PHOTO: Firefighters work as a fire burns in Paris, Feb. 5, 2019. Brigade de sapeurs-pompiers de Paris/AFP/Getty Images
Firefighters work as a fire burns in Paris, Feb. 5, 2019.

A woman who lived in the building and was known to have had psychological problems was arrested on the street nearby.

"A person who lives in the building was arrested; it's a woman in her 40s who manifested psychiatric issues," Heitz said. "She is in custody. The investigation is being carried out to know exactly the conditions in which the fire would have been spread, and the conditions in which it would have started."

PHOTO: Firefighters carry a ladder near a building that caught fire in Paris, Feb. 5, 2019. Geoffroy Van Der Hasselt/AFP/Getty Images
Firefighters carry a ladder near a building that caught fire in Paris, Feb. 5, 2019.

The fire is believed to have started around 1 a.m. local time on the second floor of an eight-story residential building in the French capital's swanky 16th arrondissement.

It took hundreds of firefighters several hours to quell the fast-moving flames, which now are under control, according to French Interior Minister Christophe Castaner.

PHOTO: A view of the apartment building after a fire broke, Feb. 5, 2019, in Paris. Christophe Ena/AP
A view of the apartment building after a fire broke, Feb. 5, 2019, in Paris.

Some residents had to be rescued from the roof as they fled the smoke and flames.

At least eight firefighters were among those injured, Heitz said.

French President Emmanuel Macron took to Twitter to thank the courageous firefighters who "saved many lives."

ABC News' Aicha El Hammar and Joseph Simonetti contributed to this report.